How to resolve net::ERR_CONNECTION_RESET when using Chrome headless mode in Selenium?

I’m having trouble accessing a specific website using Selenium with Chrome in headless mode. The error I keep getting is:

selenium.common.exceptions.WebDriverException: Message: unknown error: net::ERR_CONNECTION_RESET

This only happens when I use the --headless option. The site loads fine without it. I’ve tried different ways to set up headless mode, but the error persists. Interestingly, Firefox headless works fine.

I made sure it wasn’t a Chromedriver version issue by using ChromedriverManager. I also tried adding delays, thinking it might help, but no luck.

Here’s a simplified version of my code:

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

chrome_options = Options()
chrome_options.add_argument('--headless')
chrome_options.add_argument('--disable-gpu')

driver = webdriver.Chrome(options=chrome_options)
driver.get('https://example.com')  # Replace with the problematic URL

Any ideas on how to fix this? I need to use Chrome headless for my project. Thanks for any help!

I’ve encountered this issue before, and it can be frustrating. In my experience, net::ERR_CONNECTION_RESET when running Chrome in headless mode often hints at environmental obstacles rather than an issue with the code itself. It’s worth trying to add ‘–no-sandbox’ and ‘–disable-dev-shm-usage’ flags to your Chrome options as these can sometimes resolve the problem in headless environments.

You might also consider checking if there’s any interference from local network settings, such as proxy or firewall configurations. Sometimes these elements disrupt headless operations. Additionally, setting an explicit page load timeout may help mitigate transient network hiccups.

Ultimately, ensuring that your Chrome, Chromedriver, and Selenium versions are fully up-to-date might also resolve unexpected compatibility issues.

hey, had similar issues. try adding ‘–disable-web-security’ to ur chrome options. sometimes websites block headless browsers. also, check ur internet connection - unstable networks can cause this error. if nothing works, maybe use a proxy server? it helped me bypass some tricky sites. good luck!

I’ve dealt with this exact issue in a recent project. One thing that worked for me was adding the ‘–disable-extensions’ flag to the Chrome options. This can sometimes prevent conflicts with browser extensions that might interfere with headless mode.

Another approach that proved effective was increasing the default timeout. You can do this by adding:

driver.set_page_load_timeout(30)

right after initializing your driver. This gives the page more time to load, which can be crucial in headless mode where network conditions might be different.

Lastly, make sure you’re closing your driver properly after use. I’ve seen cases where lingering processes caused issues in subsequent runs. Always include a driver.quit() at the end of your script or in a try-finally block to ensure clean termination.